KR101250639B1 - Air guide duct structure for vehicle - Google Patents

Abstract

The present invention provides a guide duct structure for inducing outside air in front of a vehicle to a cooling device. The guide duct structure 20 protrudes toward the cooling device 16 from the left and right side wall ducts 46 and 68 provided on the left and right sides of the cooling device 16 and the inner wall surfaces 46a and 68a of the left and right side wall ducts. The left and right seal portions 47 and 69 are provided. The left and right seal parts 47 and 69 are separated from the cooling device 16 by the predetermined interval S1 toward the front of the vehicle body. The left and right seal parts 47 and 69 are elastically deformed to contact the cooling device 16 by the wind pressure when the vehicle runs.

Description

Wind duct structure for vehicle {AIR GUIDE DUCT STRUCTURE FOR VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular wind duct structure which is provided on the left and right sides of a cooling apparatus and guides outside air in front of the vehicle to the cooling apparatus as cooling wind (running wind).

Some vehicle wind duct structures contain a cooling device (radiator or the like) in a case of a cooling device, and a wind duct (hereinafter referred to as a "side wall duct") is provided on the left and right sides of the case.

In the side wall duct, a side wall plate-shaped duct body is formed of a rubber material. For this reason, the skeleton part which reinforces a duct main body is provided in order to ensure the rigidity of a duct main body.

According to the said wind duct structure, when the vehicle travels, the air in front of the vehicle is guided as cooling air into the case by the left and right side wall ducts, and the cooling device is cooled by the guided cooling wind (for example, refer to Patent Document 1).

The guide duct structure disclosed by patent document 1 is comprised so that a cooling device may be accommodated in a case and guide cooling air into a case by the left and right side wall duct. However, if the left and right sides of the cooling apparatus are spaced apart from the inner surface of the case, a part of the cooling wind introduced into the case flows through the gap between the cooling apparatus and the inner surface of the case, and thus the cooling wind cannot be efficiently guided to the cooling apparatus.

Japanese Patent Laid-Open No. 2007-15487

An object of the present invention is to provide a vehicular wind duct structure capable of efficiently inducing cooling wind to a cooling device.

According to the present invention, the left and right side wall ducts which are installed on the left and right sides of the cooling device and extend in the front and rear directions of the vehicle and guide the air in front of the vehicle to the cooling device side as cooling wind, and from the inner wall surfaces of each of the left and right side wall ducts, respectively. It has an elastically deformable left and right seal part which protrudes toward the side edge front surface of the said cooling device, and protrudes at predetermined intervals from the side edge front surface toward the front of a vehicle body, The said seal part is elastic by the running wind pressure at the time of vehicle running. A vehicular wind duct structure is provided that is deformed to contact the side edge front face.

Preferably, the left and right ribs for reinforcement continuous to the side wall duct are provided on the front wall surface or the rear wall surface of the seal portion.

Preferably, the side wall duct and the seal portion are formed of a rubber material.

Preferably, the side wall duct includes an attachment flap projecting in a direction substantially orthogonal to an extending direction of the side wall duct, and a locking portion provided on the attachment flap, wherein the locking portion is provided on the vehicle body side and has a vehicle width. It has a vertical locking part that can be caught in the upper and lower sides of the horizontal hole extending in the direction.

Preferably, the locking portion has a horizontal locking portion that can be caught on the side of the horizontal hole.

Preferably, the horizontal locking portion is caught by the side edge of the side edge.

Preferably, the air duct structure further includes an upper duct made of hard resin provided on the upper side of the cooling device, and a lower duct made of hard resin provided on the lower side of the cooling device, and the lower end of the left and right side wall ducts. Are respectively attached to the lower ducts.

Preferably, the left and right side wall ducts each have attachment flaps that are substantially orthogonal to the side walls of each of the left and right side wall ducts, and each of the attachment flaps is attached to the front bumper beam.

Preferably, the lower duct and the left and right side wall ducts have attachment holes formed in each of the lower end portions thereof, and by fitting the clips to each of the attachment holes, the lower end portions of the left and right side wall ducts are clipped with the clips. Is attached to.

Preferably, the guiding duct structure is provided between the front bumper beam 18 supporting the front bumper face and the front bulkhead supporting the cooling device, and the left and right side wall ducts face the vehicle body front and rear directions. It is made of an extending rubber material, the lower duct made of a hard resin is provided on the lower side of the cooling machine, and the lower ends of the left and right side wall ducts are attached to the lower duct, respectively.

Preferably, the lower duct has a collision energy absorbing structure for absorbing collision energy.

Preferably, the lower duct includes a rear end attached to the front bulkhead, an inclined portion projecting upwardly from the rear end toward the front of the vehicle body, and a substantially protruding portion from the inclined portion toward the front of the vehicle body. A horizontal portion is provided, and the inclined portion and the horizontal portion are made to have low rigidity to constitute the collision energy absorbing structure. It was formed to be high rigidity so that the front bumper face was supported by the shear portion of the high rigidity.

In the present invention, the air in front of the vehicle is guided to the cooling device side as cooling wind (running wind) by the side wall duct. The seal part was protruded from this side wall duct, and the protruded seal part was spaced apart at predetermined intervals from the vehicle body front side with respect to the side edge front face. During idling of the vehicle, the seal portion is kept away from the side edge front face. As a result, the seal portion does not affect the vibration characteristics of the cooling device during idling, and for example, it is possible to suppress the seal portion from resonating and increasing the vibration.

Moreover, the seal part was made into the member which can elastically deform. When the vehicle runs, the seal portion is elastically deformed by the traveling wind pressure entering from the front of the vehicle to contact the side edge front surface. By contacting the seal portion with the side edge front face, the gap (space) between the side edge duct and the side edge of the cooling apparatus can be closed with the seal portion. Thereby, the cooling wind (running wind) guide | induced to the cooling apparatus side by the side wall duct can be guided efficiently to a cooling apparatus.

In the present invention, a rib for reinforcement continuous to the side wall duct is provided on the front wall surface or the rear wall surface of the seal portion. It is possible to suitably set the rigidity of the seal portion with the rib for reinforcement, and can improve the precision of the seal portion.

In the present invention, the side wall duct and the seal portion are formed (molded) with a single rubber material. When the side wall duct is formed of a resin material and the seal part is formed of a rubber material, it is necessary to mold the side wall duct and the seal part by two-color molding.

In contrast, by forming the side wall duct and the seal portion with a single rubber material, the side wall duct and the seal portion can be molded without using two-color molding. Thereby, shaping | molding of a side wall duct and a seal part becomes easy, and the cost of a side wall duct and a seal part can be suppressed.

Moreover, it can be set as a soft member by forming (molding) a seal part with a rubber material. As a result, when the seal portion is elastically deformed by running wind pressure to contact the side edge front surface, there is no fear that the seal portion will damage the cooling device (specifically, the side edge front surface).

In this invention, the locking part was provided in the attachment flap provided in the side wall duct, and the vertical locking part was provided in the locking part. The vertical locking portion was caught by the upper and lower sides of the horizontal hole on the vehicle body side. By attaching this vertical locking part to the upper and lower sides of the horizontal hole, the attachment flap of the side wall duct can be attached to the vehicle body side. Therefore, the notch (slit) formed in the conventional side wall duct can be removed from the side wall duct. As a result, when the air in front of the vehicle is guided by the side wall duct to the cooling device as the cooling wind (running wind), the cooling air can be prevented from flowing out from the cut portion (slit) to the outside of the side wall duct. Thereby, the cooling wind guided to the cooling device side can be efficiently guided to the cooling device.

Moreover, by providing the mounting portion integrally with the vertical locking portion, the work space can be kept small compared with the case where the attachment flap is attached to the vehicle body side using, for example, a clip that is a member separate from the attachment flap. Thereby, even if a working space is small, the attachment flap of a side wall duct can be attached easily to a vehicle body side.

Moreover, in this invention, the horizontal locking part was provided in the locking part. By making this horizontal latch part hang on the side of a horizontal hole, the attachment flap of a side wall duct can be attached more reliably to a vehicle body side.

In addition, in this invention, the horizontal latch part was caught by the side edge (side edge) of a horizontal hole. As a result, the horizontal locking portion can be firmly caught on the side edge of the horizontal hole, and the attachment flap of the side wall duct can be more securely attached to the vehicle body side.

In the present invention, the duct structure for a vehicle is divided into four ducts, the left and right side wall ducts and the upper and lower ducts. The left and right side wall ducts were formed of a rubber material, and the upper and lower ducts were formed of a hard resin material. Thus, by dividing the wind duct structure for vehicles into four by the left and right side wall ducts and the upper and lower ducts, the attachment work of the guiding duct structure can be performed easily. In addition, by forming the upper and lower ducts with a hard resin material, the handling is facilitated as compared with the case where the upper and lower ducts are made of a rubber material, and the attachment work of the wind duct structure can be performed more easily.

Further, by providing the lower end portions of the left and right side wall ducts in the lower duct, the left and right side wall ducts can be reinforced with the lower duct, thereby increasing the rigidity of the left and right side wall ducts. That is, the lower duct can serve as a reinforcing member of the left and right side wall ducts. Therefore, in order to secure the rigidity of the left and right side wall ducts, the aggregate which was conventionally required may be unnecessary. In this way, by providing the lower end portions of the left and right side wall ducts in the lower duct, the rigidity of the side wall ducts can be ensured, and the aggregate for reinforcement in the side wall ducts becomes unnecessary.

In addition, since the upper duct made of hard resin is provided above the cooling device, the upper duct can be used as a guide surface of air. Thereby, the air in front of the vehicle can be guided to the cooling device side more favorably as the cooling wind by the upper duct.

In addition, by providing an upper duct made of hard resin on the upper side of the cooling device, the front bulkhead or the cooling device can be covered with the upper duct. As a result, when the engine hood is opened, the front bulkhead and the cooling device can be hidden by the upper duct, whereby aesthetics can be secured satisfactorily and marketability can be improved.

In the present invention, the side wall duct can be reinforced with the attachment flap by providing an attachment flap that is substantially orthogonal to the side wall duct. In addition, the attachment flap was installed in the front bumper beam. Accordingly, the side wall duct can be reinforced with the front bumper beam to further increase the rigidity of the side wall duct.

Moreover, in this invention, attachment holes were formed in the lower end of a lower duct and the left and right side wall duct, and a clip was fitted to each attachment hole, and the lower end part of the left and right side wall duct was attached to a lower duct. By forming the left and right side wall ducts with a rubber material, the members were made softer than the lower ducts. Therefore, the attachment hole of the left and right side wall ducts can be easily matched with the attachment hole of the lower duct. Thereby, the work which fits a clip to the attachment hole of the left and right side wall duct and a side wall duct can be made easy.

In the present invention, rubber sidewall ducts are provided on the left and right sides of the cooling apparatus. By providing the lower end portions of the left and right side wall ducts in the lower duct, the left and right side wall ducts can be reinforced with the lower duct to increase the rigidity of the left and right side wall ducts. That is, the lower duct can also serve as a reinforcing member of the left and right side wall ducts, and thus, aggregates that have been conventionally required may be unnecessary in order to secure the rigidity of the left and right side wall ducts. In this way, by providing the lower end portions of the left and right side wall ducts in the lower duct, the rigidity of the side wall ducts can be ensured, and the aggregate for reinforcement in the side wall ducts becomes unnecessary.

In the present invention, the lower duct has a collision energy absorbing structure. Accordingly, when the vehicle collides with the obstacle, the collision energy can be absorbed by the collision energy absorbing structure to protect the obstacle.

Moreover, in this invention, the inclined part was projected by the upward gradient from the rear end of the lower duct toward the front of the vehicle body, and the horizontal part was projected substantially horizontally from the inclined part toward the vehicle body front. By forming the inclined portion and the horizontal portion with low rigidity, a collision energy absorption structure was obtained. Accordingly, when the vehicle collides with the obstacle, the horizontal portion and the inclined portion are bent, whereby the collision energy can be absorbed by the collision energy absorbing structure to protect the obstacle.

1 is a perspective view showing a vehicle body front part structure having a wind duct structure for a vehicle according to Embodiment 1 of the present invention.
FIG. 2 is a perspective view illustrating the guide duct structure shown in FIG. 1.
FIG. 3 is a perspective view of the left wall duct unit shown in FIG. 2.
4 is a perspective view illustrating the right wall duct unit shown in FIG. 2.
5 is a cross-sectional view taken along line 5-5 of FIG.
FIG. 6 is an enlarged cross-sectional view of a six-part area of FIG. 5.
FIG. 7 is a perspective view showing a state in which the lower duct shown in FIG. 2 is viewed from below the vehicle body front.
8 is an enlarged cross-sectional view taken along line 8-8 of FIG. 1.
FIG. 9 is a cross-sectional view illustrating a state in which the lower bumper face is disassembled from the lower duct shown in FIG. 8.
FIG. 10 is an enlarged cross-sectional view taken along line 10-10 of FIG. 1.
It is a figure which shows the example which kept the right seal part of the right wall duct separated from a radiator.
12 is a diagram showing an example of inducing cooling wind to the cooling device side by left and right side wall ducts.
It is a figure which shows the state which the right side seal part of a right side wall duct contacts a radiator.
14 is a view showing an example of absorbing the collision energy to the lower duct of the wind duct structure.
FIG. 15 is a sectional view showing a guide duct structure according to Embodiment 2, and is a cross-sectional view corresponding to FIG. 5.
FIG. 16 is a perspective view illustrating the guide duct structure according to the third embodiment. FIG.
17 is a perspective view of the left wall duct unit shown in FIG. 16.
FIG. 18 is an exploded perspective view illustrating a state in which the horizontal holes of the vehicle body are separated from the left locking portion of the left wall duct shown in FIG. 2.
FIG. 19 is a cross-sectional view showing a state in which the left locking portion shown in FIG. 18 is caught in the horizontal hole of the vehicle body.
20 is a perspective view of the right wall duct unit shown in FIG. 16.
FIG. 21 shows a guide duct structure according to the third embodiment, which is a sectional view corresponding to FIG. 5 of the first embodiment.
FIG. 22 is an enlarged cross-sectional view of the eight-part area of FIG. 21.
FIG. 23A is a view showing a state before the vertical locking portion of the left locking portion shown in FIG. 19 is caught in the horizontal hole. FIG.
It is a figure which shows the state in the middle of inserting a vertical latch part into a horizontal hole from the state of FIG. 23A.
It is a figure which shows the state which caught the vertical latching | locking part by the horizontal hole from the state of FIG. 23B.
FIG. 24 is a view illustrating a process of engaging the horizontal locking portion of the left wall duct shown in FIG. 21 by the horizontal hole of the front bumper face.

EMBODIMENT OF THE INVENTION Hereinafter, some preferable embodiment of this invention is described below based on an accompanying drawing.

Example  One

As shown in FIG. 1, the vehicle body front part structure 10 includes front and rear front side frames 11 and 12 extending in the front and rear directions of the vehicle body, and respective front ends of the front and rear front side frames 11 and 12. A front bumper beam connected between the front bulkhead 14 provided between the sections, a cooler 16 installed (supported) on the front bulkhead 14, and front ends of the left and right front side frames 11 and 12, respectively. 18 and a guiding duct structure 20 provided between the front bulkhead 14 and the front bumper beam 18.

The upper left member 22 is provided outside the vehicle body of the left front side frame 11. The upper right side member 23 is provided outside the vehicle body of the right front side frame 12.

The front bulkhead 14 includes a left stay 25 provided on the left front side frame 11, a right stay 26 (FIG. 5) provided on the right front side frame 12, and left and right stays 25, The upper member 27 overwhelmed with the upper end part of 26, and the lower member 28 (refer FIG. 5) over the lower end part of right and left stays are provided.

The cooling device 16 is supported by the front bulkhead 14, so that the cooling device 16 is provided in front of the front bulkhead 14 or in the frame of the front bulkhead 14. As shown in FIG. The cooling device 16 includes a radiator 31 and a condenser 32. The radiator 31 is installed in front of the front bulkhead 14. The condenser 32 is provided in front of the radiator 31 (see also FIG. 5). The radiator 31 is a heat exchanger for cooling the coolant of the engine with outside air (air). The condenser 32 is a heat exchanger for cooling the refrigerant used in the refrigeration cycle of the air conditioner to the outside air.

The left end of the upper member 27 and the upper left member 22 are connected by a left connecting bar 34. The right end of the upper member 27 and the right upper member 23 are connected by the right connecting bar 35.

The vicinity 18b of the left end 18a of the front bumper beam 18 is attached to the front end 11a of the left front side frame 11 with a bolt (not shown). The vicinity 18d of the right end 18c of the front bumper beam 18 is attached to the front end 12a of the right front side frame 12 with a bolt (not shown). The left end 18a of the front bumper beam 18 is attached to the front end 22a of the upper left side member 22 with a bolt 38. The right end 18c of the front bumper beam 18 is attached to the front end 23a of the right upper side member 23 with a bolt 38.

The guiding duct structure 20 is provided between the front bulkhead 14 and the front bumper beam 18 to guide outside air as cooling wind to the cooling device 16. The guide duct structure 20 includes left and right side wall duct units 41 and 42 provided on the left and right sides of the cooling device 16, and an upper duct connected to upper ends of the left and right side wall duct units 41 and 42, respectively. 43 and the lower duct 44 connected to the lower end part of each of the left and right side wall duct units 41 and 42 are provided.

As shown in Figs. 2 and 3, the left wall duct unit 41 is formed of a rubber material, the left wall duct 46 provided on the left side of the cooling device 16 (Fig. 1), and this left wall. The left seal part 47 provided in the duct 46 is provided.

As the rubber material, an olefin-based thermoplastic elastomer (Thermo Plastic Olefin (TPO)) is used as an example. Thermoplastic elastomers have properties of rubber at room temperature, and have properties such as compression, extrusion, injection, etc. that are softened at high temperatures like thermoplastics. Therefore, by softening the thermoplastic elastomer at high temperature, the left wall duct unit 41 can be easily formed.

The left wall duct 46 extends in the vehicle body front-rear direction and guides air from the vehicle front to the cooling device 16 (FIG. 1) as cooling wind. In the left wall duct 46, the upper portion 51 is inclined in a downward gradient toward the front of the vehicle body, and the storage recess 53 is formed in the front portion 52, and the lower portion (lower portion) 54 is substantially horizontal. It is formed in the shape, and the rear portion 55 is a plate-shaped member formed substantially vertically. The storage recess 53 is a recessed portion formed in a substantially U shape to accommodate the front bumper beam 18 (FIG. 1).

The left wall duct 46 further includes an upper bent piece 57 in which the upper portion 51 is bent toward the outside of the vehicle body, a front bent piece 58 in which the front lower half portion 52a is bent toward the outside of the vehicle body, and a rear side. The stay attachment piece 61 bent toward the vehicle body outer side from the part 55, and the bumper flap 62 bent toward the vehicle body inner side from the storage recess 53 are included.

In addition, the left wall duct 46 has a bulge 63 at the center substantially at the side surface. The expansion part 63 is a site | part which expanded toward the vehicle body outer side in order to accommodate the receiver tank 33 (FIG. 5). The receiver tank 33 temporarily stores the refrigerant liquefied in the condenser 32.

The left wall duct 46 is formed by forming the upper bent piece 57, the front bent piece 58, the stay attachment piece 61, the bumper attachment flap 62 and the bulge 63 in the left wall duct 46. Can increase the rigidity.

The stay attachment piece 61 has the some stay attachment hole 61a. This stay attachment piece 61 is attached to the left stay 25 (FIG. 1) by the stay clip 64 inserted in each of the several stay attachment hole 61a.

The bumper attachment flap 62 is provided to be substantially perpendicular to the side wall of the left wall duct 46. A plurality of bumper attachment holes 62a are formed in the bumper flap 62. The bumper attachment flap 62 is attached to the front bumper beam 18 by the bumper clip 65 (FIG. 1) inserted in each of the some bumper attachment hole 62a.

The left wall duct 46 has a plurality of duct attachment holes (attachment holes) 54a formed in the lower portion 54 thereof. A plurality of duct attachment holes (attachment holes) 44d are formed in the left end portion 44b of the lower duct 44. A duct clip (clip) 66 is inserted into each of the duct attachment hole 54a and the duct attachment hole 44d. The lower portion 54 of the left wall duct 46 is attached to the left end portion 44b of the lower duct 44 by the plurality of duct clips 66.

As described above, the left wall duct 46 is attached to the left stay 25, the front bumper beam 18 or the lower duct 44 by the clips 64, 65, 66, respectively. Is arranged on the left side of the vehicle width direction of the radiator 31 and the condenser 32 (FIGS. 1 and 5).

As shown in FIG. 5, the left seal portion 47 is approximately the vehicle width from the inner wall surface 46a of the left wall duct 46 toward the left edge front surface (side edge front surface) 31a of the radiator 31. It is a member made of elastically deformable rubber which protrudes toward the direction.

As shown in FIG. 2, FIG. 4, the right side wall duct unit 42 is formed with the rubber material similarly to the left side wall duct unit 41. As shown in FIG. The right wall duct unit 42 includes a right wall duct (side wall duct) 68 provided on the right side of the cooling device 16 (FIG. 1) and a right seal portion 69 provided on the right wall duct 68. Equipped.

As the rubber material, an olefin-based thermoplastic elastomer (Thermo Plastic Olefin (TPO)) or the like is used similarly to the left wall duct unit 41. Similar to the left wall duct unit 41, the right wall duct unit 42 can be easily formed by softening the thermoplastic elastomer at a high temperature.

The right side wall duct 68 is a plate-shaped member which is substantially symmetrical with the left side wall duct 46, extends in the vehicle body front-rear direction, and cools the air in front of the vehicle as cooling air to the cooling device 16 (FIG. 1). Induce. This right wall duct 68 extends so that the upper part 71 may incline in a downward gradient toward the front of the vehicle body. The storage recess 73 is formed in the front portion 72 of the right wall duct 68. The lower portion (lower end portion) 74 of the right wall duct 68 is formed substantially horizontally, and the rear portion 75 is formed substantially vertically. The storage recess 73 is a recessed portion formed in a substantially U shape in order to accommodate the front bumper beam 18 (FIG. 1).

The right wall duct 68 includes an upper bent piece 77 bent from the upper part 71 toward the outside of the vehicle body, a front bent piece 78 bent from the front lower half 72a toward the outside of the vehicle body, The stay attachment piece 81 bent toward the vehicle body outer side from the rear part 75, and the bumper attachment flap (attachment flap) 82 bent toward the vehicle body inner side from the storage recessed part 73 are included.

By forming the upper bent piece 77, the front bent piece 78, the stay attachment piece 81 and the bumper attachment flap 82 on the right wall duct 68, the rigidity of the right wall duct 68 is increased.

The stay attachment piece 81 has the some stay attachment hole 81a. The stay attachment piece 81 is attached to the right stay 26 (FIG. 5) by the stay clip 84 inserted in each of the stay attachment holes 81a.

The bumper attachment flap 82 is provided to be approximately perpendicular to the side wall of the right wall duct 68. The bumper flap 82 is provided with a plurality of bumper attachment holes 82a. The bumper attachment flap 82 is attached to the front bumper beam 18 by the bumper clip 85 inserted into the bumper attachment hole 82a.

In addition, the right wall duct 68 is provided with the duct attachment hole (attachment hole) 74a in the lower part 74. As shown in FIG. A plurality of duct attachment holes (attachment holes) 44e are formed in the right end portion 44c of the lower duct 44. A duct clip (clip) 86 is inserted into the duct attachment hole 74a and the duct attachment hole 44e. The lower portion 74 of the right wall duct 68 is attached to the right end portion 44c of the lower duct 44 by the duct clip 86.

As described above, the right wall duct 68 is attached to the right stay 26, the front bumper beam 18 or the lower duct 44 by the clips 84, 85, 86, respectively. Is disposed on the right side of the vehicle width direction of the radiator 31 or the condenser 32 (Fig. 5).

As mentioned above, the bumper attachment flap 62 was provided substantially orthogonally with respect to the side wall of the left wall duct 46, and the bumper attachment flap 82 was provided substantially orthogonally with respect to the side wall of the right wall duct 68. As shown in FIG. . Accordingly, the side wall of the left wall duct 46 is reinforced by the bumper attachment flap 62, and the right wall duct 68 is reinforced by the bumper attachment flap 82.

Moreover, the bumper flap 62 was attached to the front bumper beam 18, and the bumper flap 82 was attached to the front bumper beam 18. As shown in FIG. Thereby, the left and right side wall ducts 46 and 68 can be reinforced by the front bumper beam 18, and the rigidity of the left and right side wall ducts 46 and 68 can be improved. That is, the front bumper beam 18 can be used as a reinforcement member of the left and right side wall ducts 46 and 68.

In addition, the left side wall duct 46 (specifically, the lower part 54) is provided in the left end part 44b of the lower duct 44 by the some duct clip 66, and the right end part of the lower duct 44 is provided. The right wall duct 68 (specifically, the lower part 74) is provided by the some duct clip 86 in 44c. Therefore, the left and right side wall ducts 46 and 68 are reinforced by the lower duct 44 to increase the rigidity of the left and right side wall ducts 46 and 68. That is, by using the lower duct 44 as a reinforcing member of the left and right side wall ducts 46 and 68, the rigidity of the left and right side wall ducts 46 and 68 is ensured, so that the aggregate required in the past is unnecessary. Thus, by providing the lower portions 54 and 74 of the left and right side wall ducts 46 and 68 to the lower duct 44, the rigidity of the left and right side wall ducts 46 and 68 is secured and the left and right side wall ducts 46 , Reinforcing aggregate may be unnecessary.

A plurality of duct attachment holes 54a were formed in the lower portion 54 of the left wall duct 46, and a plurality of duct attachment holes 44d were formed in the left end portion 44b of the lower duct 44. A plurality of duct attachment holes 74a were formed in the lower portion 74 of the right wall duct 68, and a plurality of duct attachment holes 44e were formed in the right end portion 44c of the lower duct 44. By forming the left and right side wall ducts 46 and 68 with a rubber material, the left and right side wall ducts 46 and 68 were made into a soft member compared with the lower duct 44. Therefore, the duct attachment hole 54a of the left wall duct 46 can be easily fitted with the duct attachment hole 44d of the lower duct 44, so that the duct attachment hole 54a and the lower portion of the left wall duct 46 can be fitted. The duct clip 66 can be easily fitted into the duct attachment hole 44d of the duct 44.

Similarly, the duct attachment hole 74a of the right wall duct 68 can be easily fitted with the duct attachment hole 44e of the lower duct 44, so that the duct attachment hole 74a and the lower duct of the right wall duct 68 can be fitted. The duct clip 86 can be easily fitted into the duct attachment hole 44e of 44.

As shown in FIG. 6, the right seal portion 69 is approximately the vehicle width from the inner wall surface 68a of the right wall duct 68 toward the right edge front surface (side edge front surface) 31b of the radiator 31. It is a member made of elastically deformable rubber which protrudes in the direction.

The tip portion 69a of the right seal portion 69 extends to the right edge front surface 31b of the radiator 31, and the tip portion 69a extends from the right edge front surface 31b of the radiator 31. The front side is spaced apart by a predetermined interval S1.

The rear wall surface 69b of the right seal portion 69 is provided with a plurality of right ribs 93 for reinforcement. Each of the plurality of right ribs 93 is formed in a substantially triangular shape so as to be continuous from the rear wall surface 69b of the right seal portion 69 to the inner wall surface 68a of the right wall duct 68. A plurality of right ribs 93 are provided at predetermined intervals along the vertical direction of the right seal portion 69 (FIG. 4). Thereby, the rigidity of the right seal part 69 can be set suitably with the some right rib 93 for reinforcement, and the precision of the right seal part 69 can be improved.

As shown in FIG. 5, the left seal portion 47 is symmetrical with the right seal portion 69, and the tip portion 47a extends to the left edge front surface 31a of the radiator 31. The front end portion 47a is spaced apart from the left edge front surface 31a of the radiator 31 toward the vehicle body front side by a predetermined interval S1.

The rear wall surface 47b of the left seal portion 47 is provided with a plurality of left ribs 91 for reinforcement. Each of the plurality of left ribs 91 is formed in a substantially triangular shape so as to be continuous from the rear wall surface 47b of the left seal portion 47 to the inner wall surface 46a of the left wall duct 46. Similarly to the right rib 93, the left rib 91 is provided in plural numbers at predetermined intervals along the up-down direction of the left seal portion 47. This makes it possible to suitably set the rigidity of the left seal portion 47 with the plurality of left ribs 91 for reinforcement, thereby improving the accuracy of the left seal portion 47.

The reason why the left and right seal portions 47 and 69 are spaced apart from the left and right side edge front surfaces 31a and 31b of the radiator 31 by the predetermined distance S1 is described in detail in FIG. 11.

The left and right side wall duct units 41 and 42 are each formed of a single rubber material. The left wall duct 46 and the left seal portion 47 of the left wall duct unit 41 can be molded into a single rubber material without using two-color molding. The right wall duct 68 and the right seal portion 69 of the right wall duct unit 42 can be molded into a single rubber material without using two-color molding.

On the other hand, when the side wall duct is formed of a resin material and the seal part is formed of a rubber material, it is necessary to mold the side wall duct and the seal part by two-color molding. Accordingly, by forming the left and right side wall duct units 41 and 42 with a single rubber material, the molding of the left and right side wall duct units 41 and 42 becomes easy, and the cost of the left and right side wall duct units 41 and 42 is increased. Can be suppressed.

As shown in FIG. 1 and FIG. 2, an upper duct 43 is provided on the upper side 51, 71 of each of the left and right side wall ducts 46, 68. The upper duct 43 is a board member made of hard resin (resin) formed in a substantially rectangular shape. As a hard resin material, polypropylene resin (PP) is used as an example.

A plurality of upper attachment holes 43a are formed in the rear portion 94 of the upper duct 43. The upper duct 43 is attached to the upper member 27 of the front bulkhead 14 by the upper clip 95 inserted in each of the upper attachment holes 43a. The upper duct 43 is provided above the cooling device 16 (radiator 31 or condenser 32).

In this way, by providing the upper duct 43 made of hard resin on the upper side of the cooling device 16, the upper duct 43 can be used as a guide surface of air, and the air in front of the vehicle is transferred to the upper duct 43. This can favorably guide the cooling air toward the cooling device 16.

By providing an upper duct 43 made of hard resin on the upper side of the cooling device 16, the upper duct 43 covers the front bulkhead 14 or the cooling device 16. When the hood (not shown) for the engine is opened, the front bulkhead 14 and the cooling device 16 can be hidden by the upper duct 43, so that aesthetics can be secured well and the merchandise can be improved. Can be.

Lower ducts 44 are provided in the lower portions 54 and 74 of the left and right side wall ducts 46 and 68, respectively. The lower duct 44 is a board member made of hard resin (resin) formed in a substantially rectangular shape. As a hard resin material, polypropylene resin (PP) is used as an example.

A plurality of lower attachment holes 44a are formed in the rear portion 97 of the lower duct 44. The lower duct 44 is attached to the lower member 28 (refer FIG. 5) of the front bulkhead 14 by the lower clip 96 inserted in each of the lower attachment holes 44a. The lower duct 44 is provided below the cooling device 16 (radiator 31 or condenser 32). The lower duct 44 will be described in detail with reference to FIGS. 7 to 10.

As described above, the left and right side wall duct units 41 and 42 are disposed on the left and right sides of the radiator 31 and the condenser 32, respectively, and the upper and lower ducts 43 are disposed on the upper and lower sides of the radiator 31 and the condenser 32. , 44 are arranged so that the left and right side wall duct units 41 and 42 and the upper and lower ducts 43 and 44 surround the radiator 31 and the condenser 32. It is formed in substantially rectangular shape by the left and right side wall duct units 41 and 42 and the upper and lower ducts 43 and 44.

In other words, the wind duct structure 20 for a vehicle was divided into four ducts of the left and right side wall ducts 46 and 68 and the upper and lower ducts 43 and 44. The left and right side wall ducts 46 and 68 were formed of a rubber material, and the upper and lower ducts 43 and 44 were formed of a hard resin material.

Thus, by dividing the wind duct structure 20 for vehicles into the left and right side wall ducts 46 and 68 and the upper and lower ducts 43 and 44, the attachment work of the guiding duct structure 20 can be performed easily. . In addition, by forming the upper and lower ducts 43 and 44 with a hard resin material, the handling is facilitated as compared with the case where the upper and lower ducts 43 and 44 are made of a rubber material, and the attachment work of the wind duct structure 20 can be performed more easily. have.

As shown in FIG. 7, the lower duct 44 includes a rear end portion 101 provided in the front bulkhead 14, a collision energy absorbing structure 102 provided in front of the rear end portion 101, and collision energy. And a plurality of protruding supports 103 protruding downward from the absorbing structure 102 and the protruding portion 104 provided in front of the collision energy absorbing structure 102.

As shown in FIG. 8 and FIG. 9, the rear end 101 of the lower duct 44 is formed substantially horizontally along the front end 28a of the lower member 28 of the front bulkhead 14. . The rear end 101 of the lower duct 44 is arranged at the front end 28a of the lower member 28, and in this state, the rear end 101 is arranged at the front end 28a with a plurality of lower clips 96 ( 2).

As shown in FIG. 10, the collision energy absorbing structure 102 includes an inclined portion 107 projecting in an upward gradient from the rear end 101 toward the front of the vehicle body, and approximately from the inclined portion 107 toward the vehicle body front. It has a horizontal portion 108 that protrudes horizontally. The inclined portion 107 and the horizontal portion 108 are formed in a dogleg shape. Therefore, the collision energy absorption structure 102 is formed in low rigidity so that the inclination part 107 and the horizontal part 108 may be bent by the impact load F1. In this manner, collision energy can be absorbed by bending the inclined portion 107 and the horizontal portion 108 by the impact load.

As shown in FIGS. 8 and 9, the protruding support 103 protrudes downward from the horizontal portion 108. The bottom part 103a of the protruding support part 103 contacts the front bumper face 19 (specifically, the bumper bottom part 127 of the lower bumper face 123). In this state, the bumper bottom portion 127 is attached to the bottom portion 103a of the protruding support portion 103 with a plurality of clips 111.

The protruding portion 104 includes a front end portion 113 protruding substantially horizontally from the horizontal portion 108 toward the front of the vehicle body, and a bent piece 114 bent downward from the front end portion 113a of the front end portion 113. And a plurality of reinforcing ribs provided in the vehicle width direction on the protruding piece 115 bent downward from the rear end 113b of the front end 113 and the front end 113, the bent piece 114, and the protruding piece 115. 116 (see also FIG. 7).

By providing a plurality of reinforcing ribs 116 in the front end portion 113, the bent piece 114 and the protruding piece 115, the protruding portion 104 can be formed with high rigidity, and the protruding portion 104 (specifically, , The front end 113 can support the upper rear side 128a of the front bumper face 19.

As shown in FIGS. 8 and 10, the front bumper face 19 consists of an upper bumper face 122 and a lower bumper face 123. The front bumper face 19 has a grill opening (air inlet) 121 formed between the upper and lower directions of the upper bumper face 122 and the lower bumper face 123. The upper bumper face 122 is installed in front of the front bumper beam 18. The collision absorbing member 125 is provided in the front wall 18e of the front bumper beam 18.

The lower bumper face 123 has a bumper bottom 127 formed substantially horizontally, and a bumper tip 128 formed at the front end of the bumper bottom 127. The rear end 127a of the bumper bottom 127 is attached to the lower member 28 by a plurality of clips 129, and the front end 127b is attached to the bottom 103a of the protruding support 103. It is attached by the clip 111.

The bumper front end 128 is formed in the shape which becomes thinner toward the front of a vehicle body, and the upper rear side 128a is arrange | positioned at the front end part 113 of the lower duct 44. As shown in FIG.

Next, the action of the seal portions 47 and 69 on the left and right sides of the guiding duct structure 20 will be described based on FIGS. 11 to 13. The left and right seal portions 47 and 69 are members of right and left symmetry, and the right seal portion 69 is described in FIGS. 11 to 13, and the description of the left seal portion 47 is omitted.

First, a state in which the right seal portion 69 is separated from the right edge front surface 31b of the radiator 31 during idling of the vehicle will be described.

As shown in FIG. 10, the tip portion 69a of the right seal portion 69 is spaced apart from the right edge front surface 31b of the radiator 31 toward the vehicle body front side by a predetermined interval S1. Therefore, during idling of the vehicle, the tip portion 69a of the right seal portion 69 can be kept in a state separated from the right edge front surface 31b. Thereby, the right seal part 69 does not affect the vibration characteristic of the radiator 31 at the time of idling, for example, suppresses that the right seal part 69 resonates and vibration increases.

The right side seal part 69 is provided with the right rib 93 for reinforcement in the rear wall surface 69b. Therefore, the rigidity of the right seal part 69 can be suitably set to the right rib 93 for reinforcement, and the precision of the right seal part 69 can be improved. Thereby, the front-end | tip part 69a of the right seal part 69 can be hold | maintained reliably from the right edge front surface 31b at the time of idling of a vehicle.

Next, an example in which the gap (space) S2 between the right wall duct 68 and the right edge 31c of the radiator 31 is blocked by the right seal portion 69 while the vehicle is running is based on FIGS. 12 and 13. Will be explained.

As shown in FIG. 12A, when the vehicle is running, air in front of the vehicle is guided to the left and right side wall ducts 46 and 68 and the upper and lower ducts 43 and 44 (FIG. 2), so as to cool the appliance. Into 16, a cooling wind (running wind) is induced as shown by arrow A. FIG.

As shown in FIG. 12B, the cooling wind is guided as shown by arrow A, so that the traveling wind pressure F2 acts on the right seal portion 69. The right seal part 69 is a member made of elastically deformable rubber that protrudes in the vehicle width direction. The running wind pressure F2 can be made to act at right angles to the right seal portion 69. Therefore, it is possible to elastically deform the right seal portion 69 toward the right edge front surface 31b of the radiator 31 with the traveling wind pressure F2 as shown by arrow B. FIG.

As shown in FIG. 13, the front end portion 69a of the right seal portion 69 is in contact with the right edge front surface 31b by elastically deforming the right seal portion 69 toward the right edge front surface 31b. . Therefore, the gap (space) S2 between the right wall duct 68 and the right edge 31c can be closed by the right seal portion 69. Thereby, the cooling wind (running wind) guide | induced to the radiator 31 side by the right wall duct 68 can be guide | induced efficiently to the radiator 31 like arrow C.

On the rear wall surface 69b of the right seal portion 69, a right rib 93 for reinforcement is provided. By providing the right side rib 93 for reinforcement, the rigidity of the right side seal part 69 can be set suitably, and the precision of the right side seal part 69 can be improved. Therefore, when the vehicle is running, the tip portion 69a of the right seal portion 69 can be reliably brought into contact with the right edge front surface 31b. Thereby, the gap | interval (space) S2 between the right side wall duct 68 and the right edge 31c can be prevented by the right seal part 69 further.

In addition, the right side wall duct unit 42 (right seal part 69) was made into the soft member made from rubber | gum. Therefore, when the tip portion 69a of the right seal portion 69 is brought into contact with the right edge front surface 31b, there is no fear of damaging the radiator 31 with the right seal portion 69.

Next, an example in which collision energy is absorbed into the lower duct 44 of the guide duct structure 20 will be described based on FIG. 14. As shown in Fig. 14A, the vehicle moves as shown by the arrow D at low speed so that the bumper tip 128 of the front bumper face 19 collides with the obstacle 132.

As shown in FIG. 14B, the bumper tip 128 of the front bumper face 19 is deformed so that the protrusion 104 of the lower duct 44 contacts the obstacle 132. Thus, the impact load F1 acts on the protrusion 104 of the lower duct 44 as an arrow.

The lower duct 44 has a collision energy absorption structure 102 (that is, the horizontal portion 108 and the inclined portion 107) behind the protrusion 104. Accordingly, when the vehicle collides with the obstacle 132 and the collision load F1 acts on the protrusion 104 of the lower duct 44 as an arrow, the horizontal portion 108 and the inclined portion 107 are bent. As such, the horizontal portion 108 and the inclined portion 107 are bent, so that the collision energy absorbing structure 102 can be absorbed by the collision energy to protect the obstacle 132.

The guide duct structure 20 according to the present invention is not limited to the above-described first embodiment, but can be appropriately changed, improved, or the like. For example, the front bulkhead 14, the cooling device 16, the front bumper beam 18, the wind duct structure 20, the upper duct 43, the lower duct 44, and the left wall duct shown in the above embodiment 46), the lower portion 54 of the left side wall duct, the flaps 62 and 82 with bumper, the duct clips 66 and 86, the right side wall duct 68 and the lower portion 74 of the right side wall duct, etc. It is not limited to what was illustrated, It can change suitably.

Example  2

Next, the guide duct structure 200 which concerns on Example 2 is demonstrated based on FIG. In the guide duct structure 200 of Example 2, the same code | symbol is attached | subjected to the member similar to the structural member of the guide duct structure 20 of Example 1, and the detailed description is abbreviate | omitted. The guide duct structure 200 which concerns on Example 2 is equipped with the seal unit 211 for the condenser 32. As shown in FIG. In the description according to the second embodiment, the left seal portion 47 of the first embodiment is the left first seal portion 47, the left rib 91 is the left first rib 91, and the right side is the right seal portion 47. Let the seal part 69 be the right first seal part 69, and let the right rib 93 be the right first rib 93.

As shown in FIG. 15, the seal unit 211 is for reinforcement provided in the left 2nd seal part (sealing part) 212 provided in the left wall duct 46, and the left 2nd seal part 212. As shown in FIG. Plural for reinforcement provided in the plurality of left second ribs (ribs) 213, the right second seal part (sealing part) 215 provided in the right wall duct 68, and the right second sealing part 215. Right second rib (rib) 216 is provided.

The left second seal portion 212 is elastically deformable protruding from the inner wall surface 46a of the left wall duct 46 toward the left edge front surface (side edge front surface) 32a of the condenser 32 in the vehicle width direction. It is a member made of rubber. The tip portion 212a of the left second seal portion 212 extends to the left edge front surface 32a of the condenser 32, and is also the tip portion 212a from the left edge front surface 32a of the condenser 32. Is spaced apart from the vehicle front side by a predetermined interval S3.

A plurality of left second ribs 213 for reinforcement are provided on the rear wall surface 212b of the left second seal portion 212. Each of the plurality of left second ribs 213 is formed in a substantially trapezoid shape so as to be continuous from the rear wall surface 212b of the left second seal portion 212 to the inner wall surface 46a of the left wall duct 46.

Similarly to the left rib (left first rib) 91 of the first embodiment, a plurality of left second ribs 213 are provided along the left second seal portion 212 at predetermined intervals in a vertical direction. This makes it possible to suitably set the rigidity of the left second seal portion 212 with the plurality of left second ribs 213 for reinforcement, thereby increasing the accuracy of the left second seal portion 212. .

The right second seal portion 215 is a member that is substantially symmetrical with the left second seal portion 212. That is, the right second seal portion 215 is elastically protruded in the vehicle width direction from the inner wall surface 68a of the right wall duct 68 toward the right edge front surface (side edge front surface) 32b of the condenser 32. It is a member of the rubber which can be deformed. The tip portion 215a of the right second seal portion 215 extends to the right edge front surface 32b of the condenser 32, and the tip portion 213a extends from the right edge front surface 32b of the condenser 32. It is located so as to be spaced apart from the vehicle body front side by a predetermined interval S3.

A plurality of right second ribs 216 for reinforcement are provided on the rear wall surface 215b of the right second seal portion 215. Each of the plurality of right second ribs 216 is formed in a substantially triangular shape so as to be continuous from the rear wall surface 215b of the right second seal portion 215 to the inner wall surface 68a of the right wall duct 68.

Similarly to the right rib (right first rib) 93 of the first embodiment, a plurality of right second ribs 216 are provided along the right second seal portion 215 at predetermined intervals in the vertical direction. Thereby, the rigidity of the right side 2nd seal part 215 can be set suitably by the some right side 2nd rib 216 for reinforcement, and the precision of the right side 2nd seal part 215 can be improved. .

As described above, according to the seal unit 211 for the condenser 32, the front end portions 212a and 215a of the left and right second seal portions 212 and 215 are positioned on the left and right side edges 32a of the condenser 32. , 32b), and spaced apart from the vehicle body front side by a predetermined interval S3. Therefore, during idling of the vehicle, the left and right front end portions 212a and 215a can be kept in a state separated from the left and right side edge front surfaces 32a and 32b. Accordingly, the left and right second seal parts 212 and 215 do not affect the vibration characteristics of the condenser 32 during idling. For example, the left and right second seal parts 212 and 215 resonate to vibrate. The increase can be suppressed.

On the other hand, when the vehicle is running, the cooling wind is guided to the left and right side wall ducts 46 and 68 and the upper and lower ducts 43 and 44 (FIG. 2), and the cooling wind (running wind) to the cooling device 16 side. This is induced. By inducing the cooling wind, the traveling wind pressure acts on the left and right second seal portions 212 and 215. The left and right second seal portions 212 and 215 are members made of elastically deformable rubber that protrude in the vehicle width direction.

The traveling wind pressure acts to be substantially orthogonal to these left and right second seal portions 212 and 215. Accordingly, the left and right second seal portions 212 and 215 are elastically deformed toward the left and right side edge front surfaces 32a and 32b due to the traveling wind pressure, and contact the left and right side edge front surfaces 32a and 32b. Accordingly, the gap (space) S4 between the left wall duct 46 and the left edge (specifically, the left edge of the receiver tank 33) 32c is blocked by the left second seal portion 212, The gap (space) S5 between the right wall duct 68 and the right edge 32d can be closed by the right second seal portion 215. Therefore, the cooling wind (running wind) guided to the condenser 32 side by the left and right side wall ducts 46 and 68 can be efficiently guided to the condenser 32.

As described above, the left and right second seal portions 212 and 215 are soft members made of rubber. Therefore, even if the left and right second seal portions 212 and 215 contact the left and right side edge front surfaces 32a and 32b, the condenser 32 is not damaged by the left and right second seal portions 212 and 215.

The guide duct structures 20 and 200 according to the present invention are not limited to the first and second embodiments, but can be appropriately changed, improved, or the like. For example, in the first embodiment, the left and right first ribs 91 and 93 are continuous to the left and right side wall ducts 46 and 68 on the rear wall surfaces 47b and 69b of the left and right first seal portions 47 and 69, respectively. Although the example which provided) is demonstrated, it is not limited to this. For example, providing the first ribs for reinforcement continuous to the left and right side wall ducts 46 and 68 on the front wall surfaces 47c and 69c (FIG. 5) of the left and right first seal portions 47 and 69, respectively. It is possible.

In the second embodiment, the left and right second ribs 213 and 216 which are respectively connected to the left and right side wall ducts 46 and 68 on the rear wall surfaces 212b and 215b of the left and right second seal portions 212 and 215, respectively. Although the example provided was demonstrated, it is not limited to this. For example, it is also possible to provide a second rib for reinforcement continuous to the left and right side wall ducts 46 and 68 on the front wall surfaces 212c and 215c of the left and right second seal portions 212 and 215, respectively.

In addition, in Example 1, 2, although the example provided with two or more 1st left and right ribs 91 and 93 and the 2nd left and right ribs 213 and 216 was demonstrated, respectively, it is not limited to this, The left and right 1st It is also possible to provide one rib 91 and 93 and one left and right second rib 213 and 216, respectively.

In Example 1, although the example which formed the left and right side wall ducts 46 and 68 and the left and right 1st seal parts 47 and 69 with the rubber material was demonstrated, it is not limited to this, These members are resin materials etc. It is also possible to form with other members.

In Example 2, although the example which formed the left and right 2nd seal parts 212 and 215 by the rubber material was demonstrated, it is not limited to this, It is also possible to form these members by other members, such as a resin material.

In addition, in Example 1, 2, although the example which formed the left and right side wall duct units 41 and 42 and the upper and lower ducts 43 and 44 with each other was demonstrated, it is not limited to this, The side wall duct units 41 and 42 and the upper and lower ducts 43 and 44 may be formed integrally with a rubber material, a resin material, or the like.

The cooling apparatus 16, the radiator 31, the condenser 32, the left wall duct 46, the left first seal part 47, the right wall duct 68, and the right first seal shown in Examples 1 and 2 Part 69, left first rib 91, right first rib 93, left second seal portion 212, left second rib 213, right second seal portion 215 and right second The shape and configuration of the rib 216 and the like are not limited to those illustrated, but can be changed as appropriate.

Example  3

Next, the guide duct structure 300 which concerns on Example 3 is demonstrated based on FIG. 16 or less. The guiding duct structure 300 according to the third embodiment has a left and right side for attaching the front bumper beam 18 among the left and right side wall ducts 46 and 68 constituting the guiding duct structure 20 according to the first embodiment. It is an improvement of the bumper attachment flap. Therefore, in describing the guiding duct structure according to the third embodiment, since the components other than the guiding duct structure are the same as those in the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in Figs. 16 and 17, the left wall duct unit 41 is a member formed of a rubber material, and the left wall duct (side wall duct) 46 provided on the left side of the cooling device 16 (Fig. 1). And a left seal portion 47 provided in the left wall duct 46. As the rubber material, an olefin thermoplastic elastomer (TPO, that is, Thermo Plastic Olefin) is used as an example. Thermoplastic elastomers have properties of rubber at normal temperature, and have properties such as compression, extrusion, injection and the like that are softened at high temperature, similar to thermoplastics. Therefore, by softening the thermoplastic elastomer at high temperature, the left wall duct unit 41 can be easily formed.

The left wall duct 46 extends in the vehicle body front-rear direction and is a plate-shaped member which guides air in front of the vehicle to the cooling device 16 (FIG. 1) as cooling wind (running wind). In the left wall duct 46, the upper portion 51 extends in a downward gradient toward the front of the vehicle body. A storage recess 53 is formed in the front portion 52 of the left wall duct 46. The lower portion 54 of the left wall duct 46 is formed substantially horizontally, and the rear portion 55 is formed substantially vertically. The storage recess 53 is a recessed portion formed in a substantially U shape to accommodate the front bumper beam 18 (FIG. 1).

In addition, the left side wall duct 46 includes an upper bent piece 57 bent from the upper part 51 toward the outside of the vehicle body, a front bent piece 58 bent from the front lower half 52a toward the outside of the vehicle body, Stay attachment piece 61 bent from the rear part 55 toward the outside of the vehicle body, the left bumper flap (attachment flap) 62 bent from the storage recess 53 toward the vehicle body inside, and the flap with the left bumper It has a pair of left side locking part (locking part) 302 formed in 62. As shown in FIG.

The left wall duct 46 is provided with the bulging part 63 in the substantially center part. The bulging part 63 is a site | part which expanded toward the outer side of a vehicle body in order to accommodate the receiver tank 33 (FIG. 5). The receiver tank 33 temporarily stores the refrigerant liquefied by the condenser 32.

The left wall duct 46 is formed by forming the upper bent piece 57, the front bent piece 58, the stay attachment piece 61, the left bumper-attached flap 62 and the bulge 63 in the left wall duct 46. ) Stiffness increases.

The stay attachment piece 61 is provided with the some stay attachment hole 61a. The stay attachment piece 61 is attached to the left stay 25 (refer FIG. 1, FIG. 5) with the stay clip 64 inserted in the stay attachment hole 61a.

The left bumper-attached flap 62 is provided so as to be substantially perpendicular to the front-rear direction of the left wall duct 46, that is, the side wall of the left wall duct 46. A pair of left latching | hanging parts 302 are integrally formed in this left bumper flap 62 at predetermined intervals in an up-down direction. The left locking portion 102 is formed of a rubber material.

As shown in FIGS. 18 and 19, the left locking portion 302 is a vertical locking portion that may be caught by the upper and lower sides 313 and 314 of the upper and lower horizontal holes 312 and 312 formed in the front bumper beam 18. The upper and lower locking portions 303 and a horizontal locking portion (left and right locking portions) 304 that can be caught by the outer side (side edge) 315 of the horizontal hole 312 are integrally provided.

The horizontal hole 312 is formed in the rear wall portion (car body side) 311 of the front bumper beam 18 so as to be a pair of upper and lower portions at a portion near the left end and a pair of upper and lower portions at a portion near the right end. The pair of left hook portions 302 of the flap 62 with the left bumper is caught by the pair of horizontal holes 312 in the vicinity of the left end portion.

This horizontal hole 312 is a latching hole extended in the vehicle width direction, and is set to the hole length dimension L1 of the vehicle width direction, and the hole width dimension W1. The pair of right side locking portions (locking portions) 322 of the right bumper flap (attachment flap) 82 shown in FIG. 20 is caught by the horizontal hole (not shown) near the right end portion.

The vertical locking part 303 protrudes toward the front of a vehicle body from the flap 62 with a left bumper. The vertical latching portion 303 includes the upper and lower inclined portions 305 and 306 formed to gradually move away from the front end 303a toward the rear, the upper protrusion 307 provided at the rear of the upper inclined portion 305, and the upper protrusion ( The upper locking step part 309 provided in the back of 307, the lower protrusion part 308 formed in the back of the lower inclination part 306, and the lower locking step part 310 formed in the back of the lower protrusion part 108 are provided. .

The upper locking step portion 309 and the lower locking step portion 310 are set at intervals W2, respectively. This space | interval W2 is set slightly small with respect to the hole width dimension W1 of the horizontal hole 312. As shown in FIG. The upper locking stepped portion 309 of the vertical locking portion 303 is caught by the upper side 313 of the horizontal hole 312, and the lower locking step 310 is caught by the lower side 314 of the horizontal hole 312.

The horizontal locking portion 304 extends from the vertical locking portion 303 toward the outside of the vehicle body in the width direction of the vehicle body, protrudes from the left bumper-side flap 62 toward the front of the vehicle body, and is locked to the outer end portion 304a. 318 is formed. The locking groove 318 of the horizontal locking portion 304 is caught by the outer side 315 of the horizontal hole 312, the bottom portion 318a of the locking groove 318 is the side edge 315a of the outer side 315 (See also Figure 21).

The front bumper beams 18 can be attached to the left bumper attachment flap 62 by engaging the upper and lower pairs of the left locking portions 302 with the upper and lower pairs of the horizontal holes 312. Therefore, in the left wall duct 46, the left wall duct unit 41 can be attached to the rear wall portion 311 of the front bumper beam 18 without forming a slit that has been conventionally formed. Thereby, the slit can be removed from the left wall duct 46.

In addition, the left bumper attachment flap 62 can be reliably attached to the rear wall portion 311 by engaging the locking groove 318 of the horizontal locking portion 304 with the outer side 315 of the horizontal hole 312. . In addition, the left bumper-attached flap 62 can be more securely attached to the rear wall portion 311 by engaging the bottom portion 318a of the locking groove 318 with the side edge 315a of the outer side 315. .

In the left wall duct 46, as shown in FIG. 17, a plurality of duct attachment holes 54 a are formed in the lower portion 54. The lower part 54 is attached to the left end part 44b (FIG. 16) of the lower duct 44 by the duct clip 66 inserted in each of the duct attachment holes 54a.

As described above, the left wall duct 46 is attached to the left stay 25 or the lower duct 44 by the clips 64 and 66, and the left engaging portion 102 is attached to the front bumper beam 18. It is attached by. Thereby, the left wall duct 46 is arrange | positioned at the vehicle width direction left side of the radiator 31 and the condenser 32 (refer FIG. 1, FIG. 21).

As shown in FIG. 7, the left seal portion 47 is approximately the vehicle width from the inner wall surface 46a of the left wall duct 46 toward the left edge front surface (side edge front surface) 31a of the radiator 31. It is a member made of elastically deformable rubber which protrudes in the direction.

As shown in FIG. 16 and FIG. 20, the right wall duct unit 42 is formed of a rubber material similarly to the left wall duct unit 41. The right wall duct unit 42 includes a right wall duct (side wall duct) 68 provided on the right side of the cooling device 16 (see FIG. 1), and a right seal portion 69 provided on the right wall duct 68. Equipped with.

As the rubber material, similarly to the left wall duct unit 41, an olefin-based thermoplastic elastomer (TPO, that is, Thermo Plastic Olefin) or the like is used. Therefore, similarly to the left wall duct unit 41, the right wall duct unit 42 can be easily formed by softening the thermoplastic elastomer at a high temperature.

The right side wall duct 68 is a member of substantially left-right symmetry with the left side wall duct 46, and detailed description is abbreviate | omitted. The right wall duct 68 includes an upper bent piece 77 bent from the upper part 71 toward the outside of the vehicle body, a front bent piece 78 bent toward the outside of the vehicle body from the front lower half 72a, and a rear part. 1 provided in the stay attachment piece 81 bent toward the vehicle body outer side from 75, the right bumper flap 82 bent toward the inside of the vehicle body from the storage recess 73, and the right bumper flap 82 provided. It has a pair right side locking part 322. As shown in FIG.

A pair of right locking parts 322 are integrally provided in the right bumper flap 82 at predetermined intervals in the up-down direction. In other words, the right locking portion 322 is formed of a rubber material.

The right side right locking part 322 with which the right bumper flap 82 was equipped is a left-symmetrical member and the left-right symmetry member with which the left bumper flap 62 was equipped, and the left locking part is attached to each structural member. The same reference numeral as in 302 is omitted, and description is omitted.

The upper and lower pairs of right locking portions 322 provided on the right bumper flap 82 are engaged by the upper and lower pairs of horizontal holes 312, so that the flap with the right bumper 82 is similar to the flap 62 with the left bumper. ) Can be attached to the front bumper beam 18. Thus, in the right wall duct 68, the right wall duct unit 42 can be attached to the front bumper beam 18 without forming slits that have been conventionally formed. Thereby, the slit can be removed from the right wall duct 68.

As described above, the right wall duct 68 is attached to the right stay 26 or the lower duct 44 by clips 84 and 86, and the right locking portion 322 is attached to the front bumper beam 18. Is attached by. Thereby, the right wall duct 68 is arrange | positioned in the vehicle width direction right side of the radiator 31 and the condenser 32 (refer FIG. 1, FIG. 21).

Thus, by providing the left and right side wall ducts 46 and 68 on the left and right sides of the radiator 31 and the condenser 32, the air in front of the vehicle is transferred to the radiator 31 and the condenser (left and right side wall ducts 46 and 68). 32) It can be guide | induced as cooling wind (running wind) to the (cooling apparatus 16) side. As described above, slits are not formed in the left and right side wall ducts 46 and 68. Therefore, the cooling wind (running wind) can be prevented from flowing out of the slit to the outside of the left and right side wall ducts 46 and 68. Thereby, the cooling wind can be guide | induced to the cooling device 16 efficiently by the side wall ducts 46 and 68 on either side.

Further, the left locking portion 302 is integrally provided on the left bumper flap 62, and the right locking portion 322 is integrally provided on the right bumper flap 82. Thus, for example, the left and right work compared to the case where the left and right bumper attachment flaps 62 and 82 are attached to the front bumper beam 18 by using a clip of a member separate from the left and right bumper attachment flaps 62 and 82. The space S6 (see FIGS. 21 and 22) can be suppressed small. Thereby, even if the left and right workspaces S6 are small, the left and right bumper attachment flaps 62 and 82 can be easily attached to the front bumper beam 18.

Next, the example which attaches the left bumper attachment flap 62 to the front bumper beam 18 is demonstrated based on FIGS. 23A-23C.

As shown in Fig. 23A, the left locking portion 302 of the left bumper-attached flap 62 is placed in the horizontal hole 312 of the front bumper beam 18 (specifically, the rear wall portion 311) as shown by arrow A. Insert it.

As shown in FIG. 23B, the upper inclined portion 305 of the left locking portion 302 contacts the upper side 313 of the horizontal hole 312, and the lower inclined portion 306 of the left locking portion 302 is The lower side 314 of the horizontal hole 312 is in contact. In this state, by continuously inserting the left locking portion 302 into the horizontal hole 312 as shown by arrow A, the upper protrusion 307 is compressed by the upper side 313 as shown by arrow B, and the lower protrusion 308 Is compressed as shown by arrow B by the lower side 314.

In this state, by further inserting the left locking portion 302 as shown by arrow A, the upper protrusion 307 is positioned over the upper side 313 on the front side of the vehicle body of the rear wall portion 311, and the lower protrusion 308 is lower side ( Beyond 314, it is located in the vehicle body front side of the rear wall part 311.

As shown in FIG. 23C, the upper protrusion 307 beyond the upper side 313 is restored in the compressed state, and the lower protrusion 308 beyond the lower side 314 is restored from the compressed state. The upper protrusion 307 is restored so that the upper locking step 309 is caught by the upper side 313 of the horizontal hole 312, and the lower protrusion 308 is restored so that the lower locking step 310 is the horizontal hole 312. It takes on the lower side 314 of.

Next, based on FIG. 24, the example which the horizontal latching part 304 of the left locking part 302 catches in the horizontal hole 312 is demonstrated.

As shown in Fig. 24A, the left locking portion 302 of the flap 62 with the left bumper is connected to the horizontal hole 312 of the front bumper beam 18 (specifically, the rear wall portion 311). Insert as shown by arrow A.

As shown in FIG. 24B, the outer end portion 304a of the horizontal locking portion 304 contacts the outer side 315 (specifically, the side edge 115a) of the horizontal hole 312. Accordingly, the left wall duct 46 is elastically deformed so that the left locking portion 302 moves toward the vehicle width direction inward as shown by arrow C. FIG. In this state, the left engaging portion 302 is continuously inserted into the horizontal hole 312 as shown by arrow A, so that the front portion 304b of the outer end portion 304a exceeds the outer side edge 315.

As shown in FIG. 24 (c), the front portion 304b of the outer end portion 304a exceeds the outer side 315, so that the left wall duct 46 is restored from the elastic deformation state and the left locking portion ( 302 moves in the direction of the arrow D toward the vehicle width direction outward. As the left locking portion 302 moves toward the outside in the vehicle width direction, the locking groove 318 is caught by the outer side 315, and the bottom portion 318a of the locking groove 318 has the side edge of the outer side 315 ( 315a).

23 to 24, the upper and lower locking step portions 309 and 310 of the vertical locking portion 303 are caught by the upper and lower sides 313 and 314 of the horizontal hole 312, and the horizontal locking portion 304 By engaging the locking groove 318 of the crosswise hole 312 to the outer side 315 of the crosswise hole 312, the left side locking part 302 is caught by the crosswise hole 312, and the left bumper flap 62 becomes the front bumper beam ( 18) is attached.

The guiding duct structure 300 according to the third embodiment is not limited to the above-described embodiment, but can be appropriately changed, improved, or the like. For example, in Example 3, although the example which hanged the locking groove 318 of the horizontal locking part 304 to the outer side 315 of the horizontal hole 312 was demonstrated, it is not limited to this, The locking groove 318 is not limited to this. May be caught by the inner side of the horizontal hole 312.

The left side locking part 302 shown in Example 3, the rear wall part 311 of the front bumper beam, the horizontal hole 312, the upper side 313 of the horizontal hole, the lower side 314 of the horizontal hole, the outer side 315, The shape and configuration of the side edges 315a and the right locking portion 322 are not limited to those illustrated and can be changed as appropriate.

Industrial availability

The present invention is suitable for application to an automobile having a guide duct structure for a vehicle which is provided on the left and right sides of the cooling apparatus and guides the air in front of the vehicle to the cooling apparatus side as cooling wind (driving wind).

10 body structure front part 14 front bulkhead
16 cooler 18 front bumper beam
20, 210: wind duct structure 31: radiator
31a, 32a: front left side edge (front side edge)
31b, 32b: right edge front side (side edge front)
32: condenser 46: left wall duct (side wall duct)
46a: Inner wall surface of left wall duct 47: Left first seal part (sealing part)
47b, 69b, 212b, 215b: rear wall 47c, 69c, 212c, 215c: front wall
68: right wall duct (side wall duct) 68a: inner wall surface of the right wall duct
69: right first seal part (seal part) 91: left first rib (rib)
93: right first rib (rib) 212: left second seal part (sealing part)
213: left second rib (rib) 215: right second seal part (sealing part)
216: right second rib (rib) S1, S3: predetermined interval

Claims (12)

Left and right side wall ducts installed on the left and right sides of the cooling device and extending in the front and rear directions of the vehicle, and directing the air in front of the vehicle to the cooling device side as cooling wind;
An elastically deformable left and right seal portion protruding from an inner wall surface of each of the left and right side wall ducts toward the side edge front surface of the cooling apparatus, and spaced apart from the side edge front surface at a predetermined interval toward the front of the vehicle body.
Is provided, The seal portion is elastically deformed by the running wind pressure when the vehicle travels to contact the side edge front surface,
The side wall duct,
An attachment flap projecting in a direction orthogonal to an extension direction of the side wall duct,
And a locking portion provided on the attachment flap,
The locking portion is a vehicle guide duct structure provided on the vehicle body side and having a vertical locking portion that can be caught in the upper and lower sides of the horizontal hole extending in the vehicle width direction. The wind duct structure for a vehicle according to claim 1, wherein the front wall surface or the rear wall surface of the seal portion is provided with left and right ribs for reinforcement continuous to the side wall duct. The vehicle wind duct structure according to claim 1, wherein the side wall duct and the seal portion are formed of a rubber material. delete The wind duct structure for a vehicle according to claim 1, wherein the locking portion has a horizontal locking portion that can be caught by the side of the horizontal hole. The vehicle wind duct structure according to claim 5, wherein the horizontal locking portion is caught by the side edge of the side edge. The method of claim 1, wherein the wind duct structure,
An upper duct made of hard resin provided above the cooling device;
Further provided with a lower resin duct made of a hard resin provided on the lower side of the cooling device,
A lower end portion of the left and right side wall ducts is attached to the lower duct, respectively. The said left and right side wall duct each has an attachment flap orthogonal to the side walls of each of the left and right side wall ducts,
Each of the attachment flaps is attached to a front bumper beam. 8. The lower end portion of the left and right side wall ducts of claim 7, wherein the lower duct and the left and right side wall ducts have attachment holes formed in each of the lower end portions thereof, and the clips are fitted to each of the attachment holes. The wind duct structure for a vehicle that is attached to the lower duct. The method of claim 1, wherein the guide duct structure is installed between the front bumper beam for supporting the front bumper face and the front bulkhead for supporting the cooling device,
The left and right side wall ducts are made of a rubber material extending toward the vehicle body front and rear directions,
Hard resin lower duct is installed on the lower side of the cooling device,
A vehicle guide duct structure in which lower ends of the left and right side wall ducts are attached to the lower duct, respectively. The vehicular wind duct structure according to claim 10, wherein the lower duct has a collision energy absorption structure for absorbing collision energy. The method of claim 11, wherein the lower duct,
A rear end attached to the front bulk head,
An inclined portion protruding upward from the rear end toward the front of the vehicle body;
A horizontal portion protruding from the inclined portion toward the front of the vehicle body;
By making the inclined portion and the horizontal portion low rigidity, the collision energy absorbing structure is constituted.
The front end portion protrudes from the horizontal portion toward the front of the vehicle body, and the front end portion is formed with high rigidity by providing a reinforcing rib in the front end portion.
The wind duct structure for a vehicle to support the front bumper face to the front end of the high rigidity.

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